$a: #1890ff;
$b: red;

button {
  padding: 6px 16px;
	margin: 2px;
}


button[type="primary"] {
  background-color: $b;
  color: #fff;
  border: 1px solid $b;
}

button[type="dashed"] {
  color: $b;
  background-color: #fff;
  border: 1px dashed $b;
}

button[type="default"] {
	color: $b;
  background-color: #fff;
  border: 1px solid $b;
}